//各个数据类型的大小#include<stdio.h>intmain(intargc,constchar*argv[]){chark;printf("char占用字节:%d\n",sizeof(k));inti=0;printf("int占用字节:%d\n",sizeof(i));shortj;printf("short占用字节:%d\n",sizeof(j));floatl;printf("float占用字节:%d\n",sizeof(l));doublem;printf("double占用字节:%d\n",sizeof(m));}//char占用字节:1//int占用字节:4//short占用字节:2//float占用字节:4//double占用字节:8